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Education

Medical School:  New York Medical College – Valhalla, NY

Internship

Exempla St. Joseph Hospital – Denver, CO

Residency

Diagnostic Radiology: Mallinckrodt Institute of Radiology, Washington University School of Medicine – St. Louis, MO

Fellowship

Interventional Radiology: University of Colorado School of Medicine – Aurora, CO

Board Certifications

American Board of Radiology 2010

Certificate of Added Qualification for Vascular and Interventional Radiology 2012

Matthew Gipson, MD, is a board-certified vascular and interventional radiologist at RIA Endovascular.

He pursued medical school at the New York Medical College in Valhalla, New York, followed by an internship at Exempla St. Joseph Hospital in Denver, Colorado. 

He completed a residency in Diagnostic Radiology at the Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, Missouri, and a fellowship in Interventional Radiology at the University of Colorado School of Medicine in Aurora.

In 2010, Dr. Gipson received his board certification from the American Board of Radiology. In 2012, he obtained a Certificate of Added Qualification (CAQ) for Vascular and Interventional Radiology.

Dr. Gipson has also contributed to numerous publications and presentations, such as:

• Gipson M, Cummings KW, Hurth KM. Bronchial Atresia. Radiographies. 2009 SepOct; 29(5): 1531-5 
• Gipson, MG. Percutaneous Management of Lymphoceles after Renal Transplantation. Semin intervent Radio12013; 30(2): 215-218
• Gipson MG, Smith MT. Endovascular Therapies for Primary PostPartum Hemorrhage: Techniques and Outcomes. Semin intervent Radiol2013 Dec;30(4):333-339.
• Christenson BM, Gipson MG, Smith MT. Pelvic Vascular Malformations. Semin intervent Radio!. 2013 Dec;30(4):364-371.
• M.G. Gipson Celiac Disease and Generalized Lymphadenopathy: ot Always Ominous. American College of Physicians – Colorado Associates Scientific Meeting, Denver, CO 2006.

Knowledgeable and compassionate, Dr. Gipson aims to provide outstanding care for each and every patient he treats.

Education

Medical School: Chicago College of Osteopathic Medicine – Downers Grove, IL

Residency

Diagnostic Radiology: University of California San Diego – San Diego, CA

Internship

General Surgery: Exempla St. Joseph Hospital – Denver, CO

Fellowship

Vascular and Interventional Radiology:
University of Washington – Seattle, WA

Cosette Stahl, DO, practices as a vascular and interventional radiologist at the RIA Endovascular location in Greenwood Village, Colorado.

Dr. Stahl studied medicine at the Medical School of the Chicago College of Osteopathic Medicine in Downers Grove, Illinois, driven by her intellectual curiosity and a desire to serve the community. During her medical training, she developed an interest in anatomy and minimally invasive procedures, resulting in her specializing in interventional radiology.

She completed a residency in diagnostic radiology at the University of California San Diego and interned in general surgery at Exempla St. Joseph Hospital in Denver, Colorado. Dr. Stahl also completed a fellowship in vascular and interventional radiology at the University of Washington in Seattle.

Dr. Stahl is licensed by several state medical boards across the country, including Texas, Colorado, Kansas, Nebraska, and Hawaii. She also holds licenses from the Osteopathic Medical Board of California, the Washington State Department of Health, and the American Board of Radiology in Diagnostic Radiology.

Her publications cover topics like radiation protection during fluoroscopy and imaging for intrathoracic mediastinal thyroid goiters. Dr. Stahl is excited by the potential of interventional radiology to interact with all medical specialties.

In her free time, Dr. Stahl enjoys the great outdoors of Colorado as an avid skier, hiker, and cycler, sometimes in the company of her family and poodle. She is also interested in cooking and yoga.

 

Education

Medical School:  University of Texas Southwestern Medical School – Dallas, TX

Internship

General Surgery: Indiana University School of Medicine – Indianapolis, IN

Residency

Diagnostic Radiology: University of Texas Southwestern Medical Center – Dallas, TX

Fellowship

Vascular & Interventional Radiology: The Western Pennsylvania Hospital – Pittsburgh, PA

Board Certifications

American Board of Radiology 1997

Certificate of Added Qualification in Vascular and Interventional Radiology 1999

American College of Phlebology – Member 2009

Ben Kassanoff, MD, is a board-certified vascular and interventional radiologist with RIA Endovascular serving patients in Denver, Colorado. Dr. Kassanoff is deeply committed to delivering exceptional care and innovative solutions to patients seeking treatment for various vascular and interventional radiology procedures.

Dr. Kassanoff earned his medical degree from the University of Texas Southwestern Medical School in Dallas, Texas. Continuing his medical education, Dr. Kassanoff embarked on a general surgery internship at Indiana University School of Medicine in Indianapolis, Indiana. 

Dr. Kassanoff’s dedication to the field led him to pursue a residency in diagnostic radiology at the University of Texas Southwestern Medical Center in Dallas. This rigorous program provided him with a solid foundation and advanced skills in radiology.

Dr. Kassanoff sought advanced training through a fellowship at The Western Pennsylvania Hospital in Pittsburgh to refine his vascular and interventional radiology specialization.

In recognition of his expertise, Dr. Kassanoff obtained board certifications from the American Board of Radiology and a Certificate of Added Qualification in Vascular and Interventional Radiology. He also became a member of the American College of Phlebology in 2009.

Dr. Kassanoff’s areas of interest include peripheral vascular intervention, genitourinary intervention, vertebroplasty/kyphoplasty, and complex venous access procedures. 

With his extensive education, certifications, and dedication to exceptional patient care, Dr. Kassanoff continues to impress patients and colleagues at RIA Endovascular. 

Education

Medical School: University of Colorado School of Medicine – Denver, ColoradoInternshipInternal Medicine: University of Wisconsin – Madison, Wisconsin

Surgery: University of Colorado – Denver, Colorado

Residency

Diagnostic and Interventional Radiology: University of Colorado – Denver, Colorado

Fellowship

Vascular and Interventional Radiology: University of Colorado – Denver, Colorado

Board Certifications

American Board of Radiology: Interventional Radiology

American Board of Radiology: Diagnostic Radiology

 

Tyler Green, MD, is a board-certified vascular and interventional radiologist at RIA Endovascular in Greenwood Village, Colorado. Dr. Green is committed to providing outstanding care to patients seeking solutions for vascular issues and interventional radiology procedures, such as prostate artery embolization and minimally invasive vein treatments.

Dr. Green earned his medical degree from the University of Colorado School of Medicine in Denver, Colorado. He continued his medical training at the University of Wisconsin in Madison, where he completed an internal medicine internship. Dr. Green also finished a surgical internship at the University of Colorado.

Dr. Green’s dedication and passion for radiology encouraged him to return to the University of Colorado to pursue a diagnostic and interventional radiology residency. Dr. Green also completed a fellowship at the same university to refine his specialization. He has since authored numerous publications, presentations, and articles.

With two board certifications from the American Board of Radiology in interventional radiology and diagnostic radiology, Dr. Green is an invaluable asset to patients at RIA Endovascular. His dedication to ongoing learning and providing superior patient care shines through in every patient interaction. 

Dr. Green is thrilled to offer patients state-of-the-art treatments and unwavering support, ultimately improving the quality of life for those under his care.

Education

Medical School:  University of Chicago Pritzker School of Medicine – Chicago, IL

MBA: University of Chicago Graduate School of Business – Chicago, IL
Internship

Transitional: Resurrection Hospital – Chicago, IL

Residency

Diagnostic Radiology: University of Washington Medicine – Seattle, WA

Fellowship

Interventional Radiology: University of Washington Medicine – Seattle, WA

Board Certification

American Board of Radiology 2010

Peter Stratil, MD, MBA, practices as a vascular interventional radiologist from the RIA Endovascular location in Greenwood Village, Colorado. Dr. Stratil performs minimally invasive procedures, treating conditions like cancer and vascular disease.

Dr. Stratil earned his medical degree from the University of Chicago Pritzker School of Medicine in Chicago, Illinois, and his MBA from the University of Chicago Graduate School of Business. In addition to interpreting radiology studies, he is also skilled in business development for radiology practice.

After a transitional internship at Resurrection Hospital in Chicago, Illinois, Dr. Stratil completed a residency in diagnostic radiology and a fellowship in interventional radiology at the University of Washington Medicine in Seattle.

Dr. Stratil is board-certified by the American Board of Radiology. He has co-authored publications on embolotherapy for visceral trauma, vascular imaging, pediatric radiology, and giant cell tumors. He has also presented on the business of radiology before the Association of University Radiologists.

Education

Medical School: University of California, Los Angeles David Geffen School of Medicine – Los Angeles, CA

Internship

Internal Medicine:  University of Nebraska Medical Center – Omaha, NE 

Residency 

Radiology: University of Nebraska Medical Center – Omaha, NE

Fellowship

Vascular and Interventional Radiology: University of New Mexico Hospital – Albuquerque, NM

  Sean Walker, MD, is a board-certified vascular and interventional radiologist in Denver, Colorado. Dr. Walker is highly trained and has more than a decade of experience caring for patients of all ages.
He earned his medical degree from the David Geffen School of Medicine at the University of California, Los Angeles, and completed an internship in internal medicine at the University of Nebraska Medical Center in Omaha. 
Dr. Walker stayed in Omaha to complete a residency in radiology at the University of Nebraska Medical Center and then relocated to Albuquerque, New Mexico, for a fellowship in vascular and interventional radiology at the University of New Mexico Hospital.
He has published an array of research in medical journals and has presented his findings at medical conventions nationwide.
Dr. Walker enjoys staying active and spending time with family and friends when he’s not at the office. 
He looks forward to maximizing patients’ quality of life and compassionately welcomes them to one of the multiple hospital sites he covers in Denver, Colorado.

Education

Medical School: The University of Texas Medical Branch – Galveston, TX

Internship

Transitional Medicine: St. Vincent Hospital – Indianapolis, IN

Residency

Diagnostic Radiology: Medical University of South Carolina – Charleston, SC

Fellowship

Vascular & Interventional Radiology: Johns Hopkins Hospital – Baltimore, MD

Board Certifications

American Board of Radiology 2011

American Board of Radiology  – Subspecialty certification in Vascular/Interventional Radiology 2014

Richard Coursey, MD, is a highly skilled and double board-certified vascular and interventional radiologist at RIA Endovascular. Dr. Coursey sees patients at the practice's Windsor, Colorado location.

He pursued medical school at The University of Texas Medical Branch in Galveston, Texas, followed by an internship in Transitional Medicine at St. Vincent Hospital in Indianapolis, Indiana.

He completed his residency in Diagnostic Radiology at the Medical University of South Carolina (MUSC) in Charleston and a Vascular and Interventional Radiology fellowship at The Johns Hopkins Hospital in Baltimore, Maryland.

In 2011, Dr. Coursey obtained both board certifications by the American Board of Radiology (ABR). His second certification in 2014 includes a subspecialty certification in Vascular/Interventional Radiology.

In addition, he has contributed to several publications and presentations, including:

• Coursey RL Jr., Jones EA, Chaljub G, Bertolino PD, Cano O, Swischuk LE. “Prospective Analysis Of Uncomplicated Bone Bruises In The Pediatric Knee. Emergency Radiology. 2006 Sep;12(6):266-71.
• Vascular/Interventional Radiology, Then and Now. North Dakota Society of Radiologic Technologists. April 2013.
• Interventional Oncology and TheraSphere Therapy. Cassling Seminar, ND. April 2014.
• Biochemistry/Molecular Cell Biology, Baylor College of Medicine; Abstract: Transfer Vector for the Expression of Human Acetyl-CoA Carboxylase 2 (ACC2) in vivo. Poster presentation. 225th American Chemical Society National Meeting, New Orleans, LA. 2002.

Dr. Coursey is passionate about educating people on what your interventionist can do for them. He warmly welcomes all patients into RIA Endovascular and looks forward to serving you.

Education

Medical School: Pennsylvania State University College of Medicine – Hershey, PA

Internship

Internal Medicine: Pennsylvania State University College of Medicine – Hershey, PA

Residency 

Milton S. Hershey Medical Center – Hershey, PA

Fellowship

Interventional Radiology: Mayo Clinic Hospital – Jacksonville, FL

Ray Bradford, MD, is a board-certified vascular and interventional radiologist in Northern Colorado. Dr. Bradford sees patients at RIA Endovascular in Windsor, Colorado.

He pursued medical school at the Pennsylvania State University College of Medicine in Hershey, Pennsylvania, followed by an internship in Internal Medicine also at the Pennsylvania State University College of Medicine, and his residency at Milton S. Hershey Medical Center also in Hershey.

He completed his fellowship in Interventional Radiology at the Mayo Clinic Hospital in Jacksonville, Florida.

Dr. Bradford has contributed to many presentations and publications, including:

• Choudhary AK, Bradford RK, Dias MS, Moore GJ, Boal DK. “Spinal subdural hemorrhage in abusive head trauma: a retrospective study.” Radiology 2012 Jan;262(1):216-23. doi: 10.1148/radiol.11102390 PMID: 22069156
• Bradford RK, Tulchinksky M. “Subcutaneous injection of Tc-99m pertechnetate for neonatal thyroid scintigraphy.” Clin Nucl Med. 2013 Dec;38(12):1015-8. doi: 10.1097/RLU/ 0000000000000251
• Choudhary AK, Thamburaj KT, Bradford RK, Dias M, Boal D. “Venous injury in abusive head trauma.” Pediatr Radiology. Provisionally Accepted 4/7/15. Accepted for publication on 5/29/2015
• Handbook of Radioembolization, Chapter 3, Treatment planning. Part I: Vascular considerations associated with safety and efficacy in radioembolization. RAY BRADFORD AND MARK J. MCKINNEY. Taylor and Francis Publishing 2016. ISBN 9781498742016

At present, Dr. Bradford is devoted to providing all his patients with high-quality, compassionate, and individualized care at RIA Endovascular.